Device for eliminating bubbles in flowing liquid

Abstract

The utility model discloses a flowing liquid bubble eliminating device which comprises a bubble eliminating box, a water inlet pipe, a water outlet pipe, a liquid inlet pipe, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe, a plurality of first liquid flow cavities and second liquid flow cavities which are communicated in sequence to form liquid flow channels for liquid to be detected to flow up and down in a reciprocating manner are arranged between the water inlet and the water outlet in the defoaming box; the guide pieces are arranged in the first liquid flow cavity and / or the second liquid flow cavity and located close to the liquid level, and the guide pieces are made of hydrophilic materials and extend in the transverse direction to increase the transverse liquid flow distance of the liquid to be measured. By arranging the guide piece, under the drainage effect of the guide piece, liquid flow can be forced to flow by a certain distance in the transverse direction, the transverse flowing distance of the liquid flow below the liquid level is increased, more floating time and time for making contact with the horizontal plane and breaking can be given to bubbles, the probability that the bubbles make contact with the liquid level is increased, and the probability that the bubbles break through the liquid level and overflow is increased; and the defoaming effect and the defoaming efficiency of the device are improved.

Description

Technical Field

[0001] The utility model relates to the field of water quality detection, in particular to a device for eliminating bubbles in flowing liquid. Background Art

[0002] Spectrometry is a common method for determining the components of a solution at present. During the determination process, since the bubbles in the solution have a scattering effect on light, it is easy to have a great impact on the determination result. Therefore, it is necessary to remove the bubbles in the solution as much as possible before the determination.

[0003] As Figure 1 shown Figure 1 shows a schematic structural diagram of a traditional defoaming device. The water with bubbles enters the inner part of the cavity from the water inlet at a certain flow rate. Since the water flow resistance on the right side of the water inlet is large, most of the bubbles originally in the water will directly rise from the left side of the water inlet to the liquid surface and be discharged, and a small part will flow along with the main water flow. The main water flow moves upward on the right side of the water inlet. During the process of the water flow passing through the cavity, the large bubbles generated due to the impact on the cavity wall will float to the water surface and overflow under the action of buoyancy. After the smaller bubbles float up, due to the existence of the surface tension of water, the small bubbles cannot break through the water surface and will flow downward again along the water flow direction. This cycle repeats, and finally the water that has undergone the above-mentioned multiple rounds of defoaming actions will enter the subsequent water path from the water outlet.

[0004] Therefore, the volume of the tiny bubbles in the water is too small to easily break through the surface tension of the plane and be discharged, resulting in a large amount of tiny bubbles still remaining in the water discharged from the water outlet finally, which will still have a certain impact on the determination result and lead to poor accuracy of the determination effect. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a device for eliminating bubbles in flowing liquid, which has the advantage of improving the defoaming effect.

[0006] The purpose of the utility model is achieved by adopting the following technical scheme:

[0007] According to an embodiment of the present disclosure, a device for eliminating bubbles in flowing liquid is provided, including:

[0008] A defoaming box, the top of the defoaming box is provided with an open mouth, the bottom is provided with a water inlet and a water outlet, and a number of first liquid flow chambers and second liquid flow chambers are arranged between the water inlet and the water outlet in the defoaming box and are sequentially connected to form a liquid flow channel for the liquid to be measured to flow up and down reciprocally;

[0009] A number of guiding members are arranged in the first liquid flow chamber and / or the second liquid flow chamber and are located near the liquid surface. The guiding members are made of hydrophilic materials and extend horizontally to increase the horizontal liquid flow distance of the liquid to be measured.

[0010] To implement the above technical solution, the liquid to be tested enters the defoaming tank from the water inlet at a certain flow rate and reciprocates up and down along the liquid flow channel formed by the connection of the first liquid flow chamber and the second liquid flow chamber. During the flowing process, when the liquid flow passes through the guiding member, under the guiding action of the guiding member, the liquid flow will be forced to flow horizontally for a certain distance, thereby increasing the horizontal flowing distance of the liquid flow under the liquid surface. On the basis of changing the large diameter of the liquid flow channel to a small diameter, the deflection direction of the water flow is changed, and the horizontal movement time of the water flow under the liquid surface is extended, which can give the bubbles more floating time and the time to contact and break with the horizontal plane, improve the probability of the bubbles contacting the liquid surface, increase the probability of the bubbles breaking through the liquid surface and overflowing, reduce the escape of the bubbles, and thus improve the defoaming effect and efficiency of the device.

[0011] In some exemplary embodiments, a plurality of first partitions and second partitions are provided at intervals in the defoaming tank. The first partition is connected to the top wall of the defoaming tank and forms a first water passing opening between it and the bottom wall. The second partition is connected to the bottom wall of the defoaming tank and forms a second water passing opening between it and the top wall. The first liquid flow chamber and the second liquid flow chamber are formed between the first partition and the second partition.

[0012] To implement the above technical solution, by providing the first partition and the second partition to divide and form the first liquid flow chamber and the second liquid flow chamber, a liquid flow channel for the liquid to be tested to flow is formed. Due to the up-and-down staggered arrangement form of the first water passing opening and the second water passing opening, the reciprocating up-and-down flow of the liquid to be tested is realized.

[0013] In some exemplary embodiments, the guiding member is connected to the top of each second partition.

[0014] To implement the above technical solution, it is convenient for the installation and fixation of the guiding member, and it will not interfere with the bubble adsorption module. At the same time, the guiding member can be located near the horizontal plane, which is convenient for the floating and breaking of the bubbles during the rising process of the liquid flow.

[0015] In some exemplary embodiments, the liquid flow direction in the first liquid flow chamber is from bottom to top, the liquid flow direction in the second liquid flow chamber is from top to bottom, and the guiding member at least partially extends into the first liquid flow chamber.

[0016] In some exemplary embodiments, the guiding member is in the shape of a horizontal plate, an inverted triangular shape or an inclined plate shape.

[0017] In some exemplary embodiments, the guiding member is in the shape of a horizontal plate, and its middle part is fixed to the top of the second partition.

[0018] In some exemplary embodiments, the guiding member is in the shape of an isosceles inverted triangle, and its apex angle is fixed to the top of the second partition.

[0019] In some exemplary embodiments, the guiding member is inclined and plate-shaped, and symmetrically arranged on both sides of the second partition. The bottom end of the guiding member is fixed to the side surface of the second partition, and the top end is substantially flush with the upper end of the second partition.

[0020] In some exemplary embodiments, the hydrophilic material is made of polypropylene, polyethylene, polyvinyl fluoride, polymethyl methacrylate, polyethylene terephthalate, polyvinyl chloride, polystyrene, polycarbonate or polyamide.

[0021] In some exemplary embodiments, the water inlet and the water outlet are correspondingly arranged at the outermost first partition, and a buffer cavity is formed between the outermost first partition and the side wall of the defoaming tank.

[0022] To achieve the above technical solution, at the water inlet, since the resistance in the buffer cavity part is small, most of the bubbles contained in the liquid flow will enter the buffer cavity for defoaming, and a small part will flow with the liquid flow to complete the subsequent defoaming process, which is beneficial to further improve the defoaming effect.

[0023] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0024] In the embodiment of the present invention, by providing a flowing liquid bubble elimination device, the liquid to be measured enters the defoaming tank from the water inlet at a certain flow rate, and reciprocates up and down along the liquid flow channel formed by the communication of the first liquid flow cavity and the second liquid flow cavity. During the flowing process, when the liquid flow passes through the guiding member, under the guiding action of the guiding member, the liquid flow will be forced to flow horizontally for a certain distance, thereby increasing the horizontal flowing distance of the liquid flow under the liquid surface. On the basis of realizing the change from a large diameter to a small diameter of the liquid flow channel, the direction of the water flow is changed, and the horizontal moving time of the water flow under the liquid surface is prolonged, which can give the bubbles more floating time and time to contact and break with the horizontal plane, improve the probability of the bubbles contacting the liquid surface, increase the probability of the bubbles breaking through the liquid surface and overflowing, reduce the escape of the bubbles, and thus improve the defoaming effect and defoaming efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. 21 is a schematic structural diagram of a traditional defoaming device, where the dotted line represents the liquid level.

[0026] Figure 2 FIG. 25 is a schematic structural diagram of the flowing liquid defoaming device in the embodiment of the present invention.

[0027] Figure 3 FIG. 29 is a schematic structural diagram of the guiding plate in an embodiment of the present invention, where the dotted line represents the liquid surface and the arrow indicates the liquid flow direction.

[0028] Figure 4Schematic structural diagram of the guide plate in another embodiment of the present invention, where the dashed line represents the liquid level and the arrow indicates the liquid flow direction.

[0029] Figure 5 Schematic structural diagram of the guide plate in yet another embodiment of the present invention, where the dashed line represents the liquid level and the arrow indicates the liquid flow direction.

[0030] The corresponding component names represented by the numbers and letters in the figure:

[0031] 10. Defoaming tank; 11. Open top; 12. Water inlet; 13. Water outlet; 14. First liquid flow chamber; 15. Second liquid flow chamber; 16. First partition; 17. Second partition; 18. First water passing opening; 19. Second water passing opening; 110. Buffer chamber; 20. Guide member. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0033] As Figures 1 to 5 shown, the present utility model provides a flowing liquid bubble elimination device, including: a defoaming tank 10, an open top 11 is provided at the top of the defoaming tank 10, a water inlet 12 and a water outlet 13 are provided at the bottom of the defoaming tank 10, and a plurality of first liquid flow chambers 14 and second liquid flow chambers 15 that are sequentially connected to form a liquid flow channel for the liquid to be measured to flow up and down reciprocally are provided between the water inlet 12 and the water outlet 13 in the defoaming tank 10; a plurality of guide members 20 are arranged in the first liquid flow chamber 14 and / or the second liquid flow chamber 15 and are located near the liquid level. The guide members 20 are made of hydrophilic materials and extend horizontally to increase the horizontal liquid flow distance of the liquid to be measured.

[0034] Specifically, the open end 11 is preferably provided at the top of the defoaming tank 10 near the water outlet 13 for overflow to ensure that the water level in the defoaming tank is within a reasonable range. A number of first partitions 16 and second partitions 17 are spaced in the defoaming tank 10. The first partition 16 is connected to the top wall of the defoaming tank 10 and forms a first water passing opening 18 between it and the bottom wall. The second partition 17 is connected to the bottom wall of the defoaming tank 10 and forms a second water passing opening 19 between it and the top wall. Moreover, the first partition 16 and the second partition 17 extend from the front side to the rear side, so that a first liquid flow chamber 14 and a second liquid flow chamber 15 are formed between the first partition 16 and the second partition 17. By providing the first partition 16 and the second partition 17 to divide and form the first liquid flow chamber 14 and the second liquid flow chamber 15, a liquid flow channel for the liquid to be measured to flow is formed. Due to the vertically staggered arrangement of the first water passing opening 18 and the second water passing opening 19, the liquid to be measured flows up and down reciprocally.

[0035] Wherein, the above-mentioned horizontal direction is the direction perpendicular to the second partition 17. The guiding member 20 extends from the front side to the rear side of the defoaming tank 10. Preferably, the guiding member 20 is connected to the top of each second partition 17, which is convenient for the installation and fixation of the guiding member 20 and will not interfere with the bubble adsorption module. At the same time, the guiding member 20 can be located near the horizontal plane, which is convenient for the floating and bursting of bubbles during the rising of the liquid flow. Of course, in other embodiments, it can also be fixed at the position where the upper ends of the first partition 16 and the second partition 17 are flush.

[0036] In this embodiment, it is set that the liquid flow direction in the first liquid flow chamber 14 is from bottom to top, and the liquid flow direction in the second liquid flow chamber 15 is from top to bottom. The guiding member 20 at least partially extends into the first liquid flow chamber 14 to guide during the rising of the liquid flow.

[0037] The hydrophilic material includes one or more of polypropylene (PP), polyethylene (PE), polyvinyl fluoride (PVF), polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polystyrene (PS), polycarbonate (PC), polyamide (PA). That is, it can be any one of these materials, or a mixture of two or more of them. As long as the main physical properties of the hydrophilic material show a contact angle with water < 90° and its surface energy > 25 dynes / cm, with 40 dynes / cm being preferred.

[0038] In some embodiments, the hydrophilic material is also doped with glass fiber and / or carbon fiber. That is, it can be doped with any one of glass fiber or carbon fiber, or both glass fiber and carbon fiber can be doped at the same time. In order to maintain the hydrophilic effect of the doped material, the doping ratio does not exceed 25%, and the doped material should still have the physical properties of the above-mentioned hydrophilic material. By doping glass fiber and / or carbon fiber, it is beneficial to improve the hardness of the guiding plate.

[0039] Furthermore, the guiding member 20 is in the shape of a horizontal plate, an inverted triangle, or an inclined plate.

[0040] In one embodiment, as Figure 3 shown, the guiding member 20 is in the shape of a horizontal plate, that is, the guiding member 20 is an overall plate-like structure, and the middle part of the guiding member 20 is fixed to the top of the second partition 17 by means of gluing, welding, etc. When the liquid flow passes through the guiding member 20, under the guiding action of the guiding member 20, it moves horizontally, extending the movement trajectory of the interaction between the liquid flow and the liquid surface.

[0041] In another embodiment, as Figure 4 shown, the guiding member 20 is in the shape of an inverted triangle. Preferably, the guiding member 20 is in the shape of an isosceles triangle. After the guiding member 20 is inverted, its apex angle is fixed to the top of the second partition 17 by means of gluing, welding, etc. When the liquid flow passes through the guiding member 20, under the guiding action of the guiding member 20, it moves obliquely, thereby increasing the liquid flow distance in the horizontal direction and extending the movement trajectory of the interaction between the liquid flow and the liquid surface.

[0042] In yet another embodiment, as Figure 5 shown, the guiding member 20 is in the shape of an inclined plate. Preferably, the guiding member 20 is a plate-like structure and is symmetrically arranged on both sides of the second partition 17. The bottom end of the guiding member 20 is fixed to the side surface of the second partition 17 by means of gluing, welding, etc. The top end of the guiding member 20 is basically flush with the upper end of the second partition 17. When the liquid flow passes through the guiding member 20, under the guiding action of the guiding member 20, it moves obliquely, thereby increasing the liquid flow distance in the horizontal direction and extending the movement trajectory of the interaction between the liquid flow and the liquid surface. When the liquid flow exceeds the top end of the guiding member 20, it will further flow in the space between the guiding member 20 and the second partition 17, thereby further increasing the liquid flow movement trajectory.

[0043] Furthermore, in this embodiment, the water inlet 12 and the water outlet 13 are correspondingly arranged at the outermost first partition 16, and a buffer cavity 110 is formed between the outermost first partition 16 and the side wall of the defoaming box 10. Thus, at the water inlet 12, since the resistance of the part in the buffer cavity 110 is small, most of the bubbles contained in the liquid flow will enter the buffer cavity 110 for defoaming, and a small part will flow with the liquid flow to complete the subsequent defoaming process, which is beneficial to further improving the defoaming effect.

[0044] When defoaming treatment is carried out, the liquid to be measured enters the defoaming box 10 from the water inlet 12 at a certain flow rate and reciprocates up and down along the liquid flow channel formed by the communication of the first liquid flow chamber 14 and the second liquid flow chamber 15. During the flowing process, when the liquid flow passes through the guiding member 20, the guiding member 20 will force the liquid flow to flow horizontally for a certain distance under the guiding action, thereby increasing the horizontal flowing distance of the liquid flow under the liquid surface. On the basis of realizing the change from the large diameter to the small diameter of the liquid flow channel, the deflection direction of the water flow is changed, and the horizontal movement time of the water flow under the liquid surface is prolonged, which can give the bubbles more floating time and the time to contact and break with the horizontal plane, improve the probability of the bubbles contacting the liquid surface, increase the probability of the bubbles breaking through the liquid surface and overflowing, reduce the escape of the bubbles, and thus improve the defoaming effect and defoaming efficiency of the device.

[0045] The above embodiments only express several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can be made, which are all equivalent modifications and evolutions of the above embodiments based on the substantial technology of the present utility model, and these all belong to the protection scope of the present utility model.

Claims

1. A device for eliminating bubbles in a flowing liquid, characterized in that, Comprising: An antifoaming tank, the top of the antifoaming tank is provided with an opening, the bottom is provided with a water inlet and a water outlet, and a number of first liquid chambers and second liquid chambers are arranged between the water inlet and the water outlet in the antifoaming tank and are sequentially communicated to form a liquid flow channel for the liquid to be measured to flow up and down reciprocally; A number of guiding members are arranged in the first liquid chamber and / or the second liquid chamber and are located near the liquid surface. The guiding members are made of hydrophilic materials and extend horizontally to increase the horizontal liquid flow distance of the liquid to be measured.

2. The flow liquid bubble elimination device according to claim 1, characterized in that, A number of first partitions and second partitions are arranged at intervals in the antifoaming tank. The first partitions are connected to the top wall of the antifoaming tank and form a first water passing opening between the first partitions and the bottom wall. The second partitions are connected to the bottom wall of the antifoaming tank and form a second water passing opening between the second partitions and the top wall. The first liquid chamber and the second liquid chamber are formed between the first partition and the second partition.

3. The flow liquid bubble elimination device according to claim 2, characterized in that, The guiding member is connected to the top of each of the second partitions.

4. The flow liquid bubble elimination device according to claim 3, characterized in that, The liquid flow direction in the first liquid chamber is from bottom to top, the liquid flow direction in the second liquid chamber is from top to bottom, and the guiding member at least partially extends into the first liquid chamber.

5. The flow liquid bubble elimination device according to any one of claims 2 to 4, characterized in that The guiding member is in the shape of a horizontal plate, an inverted triangular shape or an inclined plate shape.

6. The flow liquid bubble elimination device according to claim 5, characterized in that, The guiding member is in the shape of a horizontal plate, and the middle part thereof is fixed to the top of the second partition.

7. The flow liquid bubble elimination device according to claim 5, characterized in that, The guiding member is in the shape of an isosceles inverted triangle, and the apex angle thereof is fixed to the top of the second partition.

8. The flow liquid bubble elimination device according to claim 5, characterized in that, The guiding member is in the shape of an inclined plate and is symmetrically arranged on both sides of the second partition. The bottom end of the guiding member is fixed to the side surface of the second partition, and the top end is basically flush with the upper end of the second partition.

9. The flow liquid bubble elimination device according to any one of claims 1 to 4, characterized in that, The hydrophilic material is made of polypropylene, polyethylene, polyvinyl fluoride, polymethyl methacrylate, polyethylene terephthalate, polyvinyl chloride, polystyrene, polycarbonate or polyamide.

10. The flow liquid bubble elimination device according to claim 2, wherein, The water inlet and the water outlet are correspondingly arranged at the outermost first partition, and a buffer chamber is formed between the outermost first partition and the side wall of the antifoaming tank.

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